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MECHANISMS
OTHER MECHANISMS
Mechanisms for controlling and directing motion: The mechanisms used to reduce velocity are called brakes
Mechanisms that store energy: Springs are devices that absorb energy This energy can be released
later, little by little or all at once.
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Mechanisms
Around us we can see many moving obiects and mechanisms that we call motion , they have different uses
transporting people , telling the time , entertaining people
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Rotary motion mechanisms
These mechanisms transmit motion and effort in a circular way, from input and output, include:
Pulleys with belt : They consist of two pulleys or wheels that are a certain distance apart . Uses:industnal machines, vehicle engines, washing machines and drilles
Gear mechanisms and cogwheels : Cogwheels are sets of wheels that have teeth called cogs . They transmit a rotary motion between the two connected axles, which can be pararell , oblique and perpendicular
Friction drives: made up of two or more wheels that are in contact , the first wheel is called primary drive wheel and the second output wheel . It is expresed by this ecuation : N1 . D1 = N2 . D2
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Gear mechanisms with a chain:These are two cogwheels with parallel axles that are a certain distance apart, they rotate simultaneously by means of a metal chain or a toothed belt stretched over both wheels.
Gear train: This is a system of more than two gears, connected together as shown in
the diagram
Pulley trains with bellt: Look at the diagram below. It's a system of pulleys, or wheels, with a belt
formed by more than two wheels
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